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CN-224217717-U - Tower lightning protection earthing device

CN224217717UCN 224217717 UCN224217717 UCN 224217717UCN-224217717-U

Abstract

The utility model discloses a lightning protection grounding device for a pole tower, which comprises a connecting block, wherein a grounding rod is fixedly arranged on the outer surface of the lower end of the connecting block, a spiral metal conductor is fixedly arranged on the outer wall of the grounding rod, a mounting hole is formed in the upper part of the outer surface of one side of the connecting block, a grounding down wire penetrates through the mounting hole, a limiting assembly is arranged in the connecting block, and the limiting assembly comprises a second limiting hole, a third limiting hole, a mounting cavity, a compression spring, a limiting block and a limiting pin. According to the lightning protection grounding device for the tower, the limiting assembly is arranged to limit the space between the grounding down conductor and the connecting block, so that stability after connection is improved, assembly and disassembly are convenient, the contact area between the grounding body and soil is increased through the arranged grounding rod and the spiral metal conductor, and the grounding resistance is reduced.

Inventors

  • BAI XIAOYONG
  • ZHAO LILI
  • WEI JIANBO
  • LIU YAN
  • CHANG AIPING

Assignees

  • 长治市佑安防雷有限公司

Dates

Publication Date
20260508
Application Date
20250606

Claims (6)

  1. 1. A lightning protection grounding device for a pole tower comprises a connecting block (1) and is characterized in that a grounding rod (2) is fixedly arranged on the outer surface of the lower end of the connecting block (1), a spiral metal conductor (3) is fixedly arranged on the outer wall of the grounding rod (2), a mounting hole (6) is formed in the upper portion of one side outer surface of the connecting block (1), a grounding down-lead (4) penetrates through the mounting hole (6), a limiting assembly (5) is arranged in the connecting block (1), the limiting assembly (5) comprises a second limiting hole (8), a third limiting hole (9), a mounting cavity (10), a compression spring (11), a limiting block (12) and a limiting pin (13), the second limiting hole (8) is formed in the middle of the outer surface of the upper end of the connecting block (1), the third limiting hole (9) is formed in the lower end of the mounting hole (6), and a first limiting hole (7) is formed in the lower end of the grounding down-lead (4).
  2. 2. The lightning protection grounding device for the pole and tower according to claim 1 is characterized in that the connecting block (1), the grounding rod (2), the spiral metal conductor (3) and the grounding down conductor (4) are made of conductive materials.
  3. 3. The lightning protection grounding device for the pole and tower according to claim 2 is characterized in that the lower end of the grounding down conductor (4) is in interference fit with the mounting hole (6).
  4. 4. The lightning protection grounding device for a pole tower according to claim 3, wherein the lower end of the second limiting hole (8) is communicated with the upper portion of the mounting hole (6), the mounting cavity (10) is formed in the lower end of the connecting block (1), and the lower end of the third limiting hole (9) is communicated with the middle portion of the upper end of the mounting cavity (10).
  5. 5. The lightning protection grounding device for a pole and tower according to claim 4, wherein the compression spring (11) and the limiting block (12) are both located in the installation cavity (10), the compression spring (11) is fixed between the bottom of the installation cavity (10) and the outer surface of the lower end of the limiting block (12), the limiting pin (13) is fixedly installed in the middle of the outer surface of the upper end of the limiting block (12), the outer wall of the limiting pin (13) is in sliding connection with the second limiting hole (8) and the third limiting hole (9), the outer wall of the limiting block (12) is in sliding connection with the installation cavity (10), and the outer surface of the lower end of the limiting block (12) is in elastic connection with the bottom of the installation cavity (10) through the compression spring (11).
  6. 6. The lightning protection grounding device for the pole and tower according to claim 5 is characterized in that the outer wall of the limiting pin (13) is spliced with the first limiting hole (7).

Description

Tower lightning protection earthing device Technical Field The utility model relates to the technical field of lightning protection grounding of towers, in particular to a lightning protection grounding device of a tower. Background In a power system, a lightning protection grounding device of a pole tower is an important component for guaranteeing safe operation of a power transmission line. In the prior art, the traditional lightning protection grounding device generally adopts a simple vertical grounding body or a horizontal grounding body, the contact area between the traditional lightning protection grounding device and soil is limited, so that the grounding resistance is larger, the rapid release of lightning current is influenced, and the risk of lightning strike accidents is increased. In addition, the existing grounding down-lead and the grounding body are connected by bolts, and the connecting structure is easy to loosen or even fall off due to vibration, corrosion or external force in the long-term operation process, so that grounding failure is caused, and the stability and the safety of a power system are seriously threatened. Therefore, we propose a tower lightning grounding device. Disclosure of utility model (One) solving the technical problems Aiming at the defects of the prior art, the utility model provides a lightning protection grounding device for a pole tower, which has the advantages that the contact area between a grounding body and soil is increased by a spiral structure, the grounding resistance is reduced, the connection between a grounding down-lead and the grounding body is more stable, and the problems in the background art can be effectively solved. (II) technical scheme In order to achieve the purpose, the lightning protection grounding device for the tower comprises a connecting block, wherein a grounding rod is fixedly arranged on the outer surface of the lower end of the connecting block, a spiral metal conductor is fixedly arranged on the outer wall of the grounding rod, a mounting hole is formed in the upper portion of the outer surface of one side of the connecting block, a grounding down wire penetrates through the mounting hole, a limiting assembly is arranged in the connecting block and comprises a second limiting hole, a third limiting hole, a mounting cavity, a compression spring, a limiting block and a limiting pin, the second limiting hole is formed in the middle of the outer surface of the upper end of the connecting block, the third limiting hole is formed in the lower end of the mounting hole, and a first limiting hole is formed in the lower end of the grounding down wire. Preferably, the connecting block, the grounding rod, the spiral metal conductor and the grounding down conductor are all made of conductive materials. Preferably, the lower end of the grounding down conductor is in interference fit with the mounting hole. Preferably, the lower end of the second limiting hole is communicated with the upper portion of the mounting hole, the mounting cavity is formed in the lower end of the connecting block, and the lower end of the third limiting hole is communicated with the middle portion of the upper end of the mounting cavity. Preferably, the compression spring and the limiting block are both positioned in the mounting cavity, the compression spring is fixed between the bottom of the mounting cavity and the outer surface of the lower end of the limiting block, the limiting pin is fixedly arranged in the middle of the outer surface of the upper end of the limiting block, the outer wall of the limiting pin is slidably connected with the second limiting hole and the third limiting hole, the outer wall of the limiting block is slidably connected with the mounting cavity, and the outer surface of the lower end of the limiting block is elastically connected with the bottom of the mounting cavity through the compression spring. Preferably, the outer wall of the limiting pin is inserted into the first limiting hole. (III) beneficial effects Compared with the prior art, the utility model provides a lightning protection grounding device for a pole tower, which has the following beneficial effects: 1. This tower lightning protection earthing device, through the spacing subassembly that sets up, the connection between ground connection downlead and the connecting block is more firm, and the spacer pin is in the first spacing hole of compression spring's effect card income ground connection downlead, effectively prevents not hard up or drops, ensures the reliability of long-term operation. 2. This tower lightning protection earthing device, earthing rod outer wall fixed mounting's spiral metal conductor has increased the area of contact of grounding body with soil by a wide margin to showing the reduction ground resistance, promoting the bleeder ability of thunder current, reinforcing lightning protection effect. Drawings Fig. 1 is a schematic diagram of the overall s